Specimen Type

Specimen Required

Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type

Temperature

Time

Serum

Refrigerated (preferred)

28 days

Ambient

28 days

Frozen

28 days

Reference Values

30.0-60.0 mcg/mL

Test Classification

This test was developed and its performance characteristics
determined by Mayo Clinic in a manner consistent with CLIA
requirements. This test has not been cleared or approved by the
U.S. Food and Drug Administration.